def _sub_callback_internal(self, topic, msg):
try:
message = msg.decode()
_mqtt_log.info("Subscribe received, topic={}, message={}".format(
topic.decode(), message))
restart = False
config_setting = ujson.loads(message)
config_keys = config_setting.keys()
for key in config_setting:
config = config_setting[key]
key_exist = self.bs_config.check_key_exist(key)
if key_exist:
if not restart:
restart = self.bs_config.mqtt_check_key_restart(key)
result = self._handle_callback(key, config)
if result:
restart = True
if restart:
restart = False
_mqtt_log.info(
"New configuration was received from mqtt, restarting system to take effect"
)
Power.powerRestart()
except Exception as err:
_mqtt_log.error(
"Cannot handle subscribe callback for mqtt, the error is {}".
format(err))
finally:
self._is_sub_callback_running = False
def _download_fota_file(self, download_url):
file_name = self._download_one_file(download_url)
file_exist = bluestone_common.BluestoneCommon.check_file_exist(file_name)
if file_exist:
fota.set_update_flag()
utime.sleep_ms(1000)
_fota_log.info("User application file was downloaded, restarting system to take effect")
Power.powerRestart()
else:
_fota_log.error("Cannot download file from '{}'".format(download_url))
def _download_fota_app(self, download_url_list):
fota = app_fota.new()
download_list = self._get_download_list(download_url_list)
if not download_list or len(download_list) <= 0:
return
result = fota.bulk_download(download_list)
if result and len(result) > 0:
_fota_log.error("Cannot download files, the error is {}".format(result))
return
fota.set_update_flag()
utime.sleep_ms(1000)
_fota_log.info("User application files were downloaded, restarting system to take effect")
Power.powerRestart()
def run():
fota_obj = fota() # 创建Fota对象
file_size = uos.stat("FotaFile.bin")[6] # 获取文件总字节数
print(file_size)
with open("FotaFile.bin", "rb") as f: # rb模式打开.bin文件(需要制作升级包文件)
while 1:
c = f.read(1024) # read
if not c:
break
fota_obj.write(c, file_size) # 写入.bin文件数据与文件总字节数
fota_log.info("flush verify...")
res = fota_obj.verify() # 校验
if res != 0:
fota_log.error("verify error")
return
fota_log.info("flush power_reset...")
utime.sleep(2)
Power.powerRestart() # 重启模块
def _download_fota(self, fireware_url):
file_name = self._download_one_file(fireware_url)
file_exist = bluestone_common.BluestoneCommon.check_file_exist(file_name)
if not file_exist:
_fota_log.error("Cannot download fireware file from '{}'".format(download_url))
return
fota_obj = fota()
file_size = uos.stat(file_name)[6]
with open(file_name, "rb") as f:
while True:
count = f.read(1024)
if not count:
break
fota_obj.write(count, file_size)
_fota_log.info("Flush fireware and verify...")
res = fota_obj.verify()
if res != 0:
_fota_log.error("Fireware verify failed ")
_fota_log.info("Fireware was downloaded, restarting system to take effect")
utime.sleep_ms(2000)
Power.powerRestart()
def _uart_read(self, name, uart):
_uart_log.info("UART {} start with {}".format(name, uart))
config = None
loop = True
restart = False
while loop:
num = uart.any()
utime.sleep_ms(50)
num2 = uart.any()
if num != num2:
continue
if num:
_uart_log.info("UART ready data length is {}".format(num))
msg = uart.read(num)
# 初始数据是字节类型（bytes）,将字节类型数据进行编码
utf8_msg = msg.decode()
if num < 1024:
_uart_log.info("UART read message is {}".format(utf8_msg))
is_json = bluestone_common.BluestoneCommon.is_json(utf8_msg)
if not is_json:
self.send_message(name, utf8_msg)
continue
try:
config_setting = ujson.loads(utf8_msg)
config_keys = config_setting.keys()
if 'payload' in config_keys: # uart write payload, ignore it
continue
for key in config_setting:
config = config_setting[key]
exist = self.bs_config.check_key_exist(key)
if exist:
self.bs_config.update_config(key, config)
self._handle_cmd(key, config)
if name in config_keys:
config = config_setting[name] # 保证重启逻辑的数据正确性
loop = False
restart = False
else:
restart = self.bs_config.check_key_restart(key)
if restart:
loop = False
self.send_message(name, config_setting)
except Exception as err:
_uart_log.error(
"Cannot handle read command for uart, the error is {}".
format(err))
else:
continue
utime.sleep_ms(300)
if restart:
restart = False
_uart_log.info(
"New configuration was received from uart, restarting system to take effect"
)
Power.powerRestart()
else:
self.restart_uart(name, config)